Guardian Slime [LED7-EN003] Ultra Rare DP19 [1YY] Aurora Horns (120)

[1YY] Aurora Horns (120)

[3] Double Cannon (40x)

look at the top card of their Deck

Fusion Summon 1 Fusion Monster from your Extra Deck that lists that monster on the field as a Fusion Material Monster

If you get 2 or more heads

Guardian Slime [LED7-EN003] Ultra Rare DP19 [1YY] Aurora Horns (120)Set: Legendary Duelists: Rage of Ra Card type: Effect Monster Rarity: Ultra Rare Attack: 0 Defense: 0 If you take battle or effect damage: You can Special Summon this card from your hand. During damage calculation, if this card battles an opponent's monster (Quick Effect): You can make this card gain DEF equal to that opponent's monster's ATK during that damage calculation only. If this card is sent from the hand or field to the GY: You can add 1